cc: Move background filters to the effect tree

cc/layers/render_surface_impl.h

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_LAYERS_RENDER_SURFACE_IMPL_H_
 #define CC_LAYERS_RENDER_SURFACE_IMPL_H_
 
 #include <stddef.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "cc/base/cc_export.h"
 #include "cc/layers/layer_collections.h"
 #include "cc/quads/render_pass.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/trees/occlusion.h"
 #include "cc/trees/property_tree.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/rect_f.h"
 #include "ui/gfx/transform.h"
 
 namespace cc {
 
 class DamageTracker;
+class FilterOperations;
 class Occlusion;
 class RenderPassId;
 class RenderPassSink;
 class LayerImpl;
 class LayerIterator;
 
 struct AppendQuadsData;
 
 class CC_EXPORT RenderSurfaceImpl {
  public:
@@ skipping 105 matching lines @@
   bool HasReplica() const;
   const LayerImpl* ReplicaLayer() const;
   LayerImpl* ReplicaLayer();
 
   LayerImpl* MaskLayer();
   bool HasMask() const;
 
   LayerImpl* ReplicaMaskLayer();
   bool HasReplicaMask() const;
 
+  const FilterOperations& BackgroundFilters() const;
+
   bool HasCopyRequest() const;
 
   void ResetPropertyChangedFlag() { surface_property_changed_ = false; }
   bool SurfacePropertyChanged() const;
   bool SurfacePropertyChangedOnlyFromDescendant() const;
 
   DamageTracker* damage_tracker() const { return damage_tracker_.get(); }
 
   RenderPassId GetRenderPassId();
 
@@ skipping 69 matching lines @@
   int target_render_surface_layer_index_history_;
   size_t current_layer_index_history_;
 
   friend class LayerIterator;
 
   DISALLOW_COPY_AND_ASSIGN(RenderSurfaceImpl);
 };
 
 }  // namespace cc
 #endif  // CC_LAYERS_RENDER_SURFACE_IMPL_H_